1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cff2fd23ba60b21af393a985c8a4c9ab844a06765260e33f39750c5fcb949d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81ae8492-cd0f-49e4-846d-cfa4e983b79a.json and https://artists.proofprofile.net/proofs/artist/81ae8492-cd0f-49e4-846d-cfa4e983b79a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d07c457ff9554fd936db1153bd95b375707f199f78466f4599138240a2abbd0. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13ad02295f8084ea98c1fcad6c593443e298956789105cdf012b68924ebb4f7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3136be1e979bb0e15ffc8cabdfd163f10fb35e952815a58c9c1ecfbbbdd99051. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e71413bbb8cf029ae68ad92476140dfeef03fa7591370c3cb0df4de0d091ba9. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd1a95b327679edf19d244bca689b9a8083bc17bf7b76d5e89fe9c9de899131. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290b3d0e79757b650b3c01c5b85b5c8e1e3aa1463ccc2c5edf6a362028f6eb68. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa143535fc184da58b2dc59cbc82f3fa8d231ddc3a4c70b61945b28f64d857746. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610773.
Ohm Rider (When You Die You'll Meet God)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c72433cd7aa158c3876ba8c77393d0f2cbaa5f33949f0640fb06ec16161075a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa626c5cb16f164328f7c737d0838d6c5b7f94f734e0eda6b246b10b3903d5d53. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299e39c1e4c9d4224853645c361921d805057db231dd1bf439174b13a7aa98fa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610969.
Canción De Aplauso - Pimps of Joytime Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eb157e97fe5ad2909899ce22614471a5abd7d887e6039ea3e014b4fe449656. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155a9a5ec02384d7ba420545c1a84b60599a34eeb2209619aa86fc366119acc9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71691fc69a2098baaa56847c8ae96b5e68d6639b8a1eabf2b4936c086476fbf6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f359757400ba3b4f8c46c36c2661a88eb44e4d8399139768aac4fa1f79acee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbe0dcf119aa51a463920ddcaad6ee3529850f9c31cfee0a97011d93160bfd6. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e34b54d7f5fff861d3b51f0af5e7e1dbc0393a032881efd138fd94af2a5e236. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7720759ac4fbedde2285249662d1101b0ab1bc93912ed319b52b4bf6b3086e8. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5aa21d528ce03f015fefb1b8f81a4742a9c12632c37c56892671e275e359f6. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a93c3d4041cb8c2948c230b56aec6fac814e066cd4d0e079cf3b79aab6cd4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8GX1701670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f2492d484df9a0e15507eb085e8d5a1766e7beb6610ae1c196a4406503f6fc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8GX1701689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf608f6026fff0d1caa0c2529a7da10f0b0c90125fee956428f0e80f93413ec. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8GX1701706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e72d0ae3031dc23b14e841703d53e7045015a81f0c976b4790610b5a31b3e7c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8GX1701705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb612439d57989f8708e18705ad561f16a689911080e901908cdd10e74bc57426. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8GX1701709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ddab1d79705c8959d408a63ed23302ad324538ded1bb311d6f37b10fc68153. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d06a57de60d74a950a8ddca9814ee9f9fcdd3f2694a043bc8869d0011b208ed. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea26189b62c5f80834c1df074a7b5f009937102b576f943311bb1faabd9296d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d06a57de60d74a950a8ddca9814ee9f9fcdd3f2694a043bc8869d0011b208ed. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d6795704b90a9264a556d6f340848c9b0f784f90987a25452a150d1515fddc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6411289ed0c71cfcba7c0ce81227d962676514ad77d9d9bfafc19bd6b7cf415. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc718174cb2a05f45d0d569d255c64b4995e2873824c7bc7787e2f4319369a86e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc718174cb2a05f45d0d569d255c64b4995e2873824c7bc7787e2f4319369a86e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b39e6b80b2bebc4cdd9d0ab9e0fd9574070148e52b65638a062be123ad94a06. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1610936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ba9158fceefbc8eed48a23620af626c41fa4f26e76067e116f9d377bbee898. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCCW1611311.